Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 125mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel for mildly corrosive environments. For the same bore and stroke it is shorter than an ISO 6432 cylinder, saving mounting space.
- BoreØ40 mm
- Stroke125 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB
Delivering 628.3 N of push force at 0.5 MPa, the AirTAC MFC40X125SCASDB is a JIS-standard round-body mini cylinder built for demanding actuation. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments. A built-in piston magnet (-S) enables position sensing with CMSG, DMSG, or EMSG switches.
The defining feature of this double-acting unit is the variable air cushion at both ends, which uses a needle valve to absorb end-of-stroke shock at high speeds, protecting your payload. For the same 40 mm bore and 125 mm stroke, the riveted body is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting length. Equipped with a 1/4 inch port and an M14x1.5 male rod thread, it provides a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 margin.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MF/MFC (JIS-standard) datasheet. Barrel: SUS304 stainless steel; covers: aluminum alloy (round-body, riveted rolling-packed construction). Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MF-family variants: MF / MFC (double acting ±cushion), MSF / MTF (single acting push / pull), MFD / MFCD (double rod ±cushion), MFJ / MFCJ (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB Is Used
High-Speed Package Diverting
Uses the 628.3 N thrust to push heavy cartons off a main belt at high cycle rates, relying on the adjustable air cushion to prevent end-of-stroke impact damage.
Automated Press Ejection
Ejects dense stamped parts from a die, absorbing the sudden deceleration of the 16 mm rod with the needle-set cushion to protect tooling.
Vertical Pallet Lift Stops
Raises lightweight pallets in a washdown zone where the SUS304 barrel resists moisture, stopping smoothly at the top of the 125 mm stroke.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB the Right Cylinder?
When sizing this 40 mm bore unit, step down to the MFC32 if your application only requires 402.2 N of push force at 0.5 MPa, as the MFC40 is the largest available bore in this series. The variable air cushion is essential when cycling heavy loads at high speeds, as it decelerates the piston smoothly near the stroke end. Note that this cushion only reduces impact; it does not lock the rod. If you need to hold a load vertically during air loss, add an external rod lock or pilot-operated check valve.
This specific SKU includes a CA rear pivot cover and pairs with an SDB pivot-block mount. Because it carries the -S magnet designation, you can directly mount CMSG, DMSG, or EMSG sensors without modification.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCASDB FAQ
This 40 mm bore cylinder features a 1/4 inch air port and an M14x1.5 male rod thread. At 0.5 MPa it provides 628.3 N of push force and 527.8 N of pull force. At 0.7 MPa the push increases to 879.6 N and pull to 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, the variable air cushion only decelerates the piston near the end of the stroke; it does not function as a brake or lock. If air loss occurs, the piston will drift. For suspended or vertical loads, you must install an external rod lock or a pilot-operated check valve.
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